diff --git a/src/vendorcode/Makefile.inc b/src/vendorcode/Makefile.inc
index 741a04a..440972f 100644
--- a/src/vendorcode/Makefile.inc
+++ b/src/vendorcode/Makefile.inc
@@ -1,3 +1,4 @@
 subdirs-y += amd
 subdirs-y += google
 subdirs-y += intel
+subdirs-y += siemens